Home / 82,555,309.80-123,832,964.70-21,144,349.80

Finding the Fourth Proportional to 82,555,309.80, 123,832,964.70 and 21,144,349.80

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Solution

The fourth proportional to 82,555,309.80, 123,832,964.70 and 21,144,349.80 is: 31,716,524.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,555,309.80 : 123,832,964.70 = 21,144,349.80 : x
  2. Step 2: Convert to fraction form
    82,555,309.80/123,832,964.70 = 21,144,349.80/x
  3. Step 3: Cross multiply
    82,555,309.80x = 123,832,964.70 × 21,144,349.80
  4. Step 4: Simplify right side
    82,555,309.80x = 2,618,367,522,387,852
  5. Step 5: Solve for x
    x = 2,618,367,522,387,852/82,555,309.80
  6. Step 6: Final answer
    x = 31,716,524.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.